Methyl 2,6,10-Trimethylcyclododeca-2,5,9-Trien-1-Yl Ketone
Aroma Chemical Heart Note CAS 28371-99-5
A woody note with an ambergris character and a soft musk facet. Vetiver and natural, it adds a tobacco woody depth to compositions.
Odor profile
| Note | Heart Note |
| Descriptor 1 | Amber |
| Descriptor 2 | Woody |
| Descriptor 3 | Smoky |
| Odor Impact1 | 100 |
| Tenacity1 | 284 h |
| Tenacity2 | 96 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Both tenacity figures are blotter life. The two labs use different evaluation protocols, so the numbers are not directly comparable — read them as two independent readings, not as a contradiction.
Identification
| CAS Number | 28371-99-5 |
| INCI Name | Methyl 2,6,10-trimethylcyclododeca-2,5,9-trienyl ketone |
| Category | Aroma Chemical |
| Formula | C17H26O |
| Mol. Weight | 246.4 |
| IUPAC Name | 1-(2,6,10-trimethylcyclododeca-2,5,9-trien-1-yl)ethanone |
| InChIKey | QWAUHUKNKGMBBD-UHFFFAOYSA-N |
Synonyms
cyclisone, ethanone, 1-(2,6,10-trimethyl-2,5,9-cyclododecatrien-1-yl)-, fixamber, methyl 2,6,10-trimethyl cyclododeca-2,5,9-trien-1-yl ketone, 1-(2,6,10-trimethyl-2,5,9-cyclododecatrien-1-yl) ethanone, 1-[(2Z,5Z,9Z)-2,6,10-trimethylcyclododeca-2,5,9-trien-1-yl]ethanone, trimofix
Physical and chemical data
| Boiling Point | 349.00 °C |
| Flash Point | 93.89 °C |
| Density | 0.98000 |
| Refractive Index | 1.51400 |
| Vapor Pressure | 0.000045 mmHg @ 25.00 C. (est) |
| LogP | 5.195 |
| Solubility | alcohol; water, 0.1943 mg/L @ 25 C (est); acid cleaner |
| Appearance | colorless to pale yellow clear liquid |
Regulatory status
IFRA maximum concentrations
| Category | Use | Limit in the finished product |
|---|---|---|
| Category 1 | Lip products, toys | 0.00016 % |
| Category 2 | Deodorants, antiperspirants | 0.13 % |
| Category 3 | Eye products | 0.40 % |
| Category 4 | Fine fragrance | 2.4 % |
| Category 5A | Body lotion | 0.60 % |
| Category 5B | Face cream | 0.52 % |
| Category 5C | Hand cream | 0.60 % |
| Category 5D | Baby creams, oils | 0.17 % |
| Category 6 | Oral care, mouthwash | 0.00016 % |
| Category 7A | Rinse-off hair products | 0.87 % |
| Category 7B | Leave-on hair products | 0.87 % |
| Category 8 | Intimate and baby wipes | 0.17 % |
| Category 9 | Soap, shampoo, rinse-off | 2.2 % |
| Category 10A | Household care, hand contact | 2.2 % |
| Category 10B | Aerosol air fresheners | 4.4 % |
| Category 11A | Intended skin contact | 0.17 % |
| Category 11B | Minimal skin contact | 0.17 % |
| Category 12 | No skin contact, candles | Not restricted |
| IFRA Amendment | 49 |
| Restriction Type | Restriction |
| Critical Effect | Dermal Sensitization And Systemic Toxicity |
All figures on this page are guide values collected from public reference works and supplier declarations. They differ between batches, origins and qualities. The data sheet of your own supplier is always the authoritative document for the material you actually use.